P0482 Code: Fan 3 Control Circuit Malfunction
🟠 Moderate severity · drivable
Drivable, but the third cooling fan may not run, risking overheating in traffic; fix it soon.
What P0482 means
There is an electrical problem in the control circuit for the third engine cooling fan, which helps cool the radiator and A/C condenser. Some vehicles use multiple fans or fan speeds, and this code points to fan 3 specifically. If the fan does not run, the engine can overheat when idling or in slow traffic.
Symptoms
- Check engine light is on
- Engine temperature rising in traffic
- Fan 3 not spinning when it should
- A/C not cooling well at idle
Common causes
- most common: Faulty fan relay or module for fan 3
- common: Failing fan 3 motor
- common: Damaged wiring or blown fuse
- less common: Corroded fan connector
How to fix it
| Fix | DIY? | Typical cost |
|---|---|---|
| Check the fuse and replace the fan relay | Yes | $10–60 |
| Replace the fan 3 motor | Yes | $150–400 |
| Repair damaged fan wiring or connector | Mechanic | $50–200 |
Frequently asked questions
Can I drive with a P0482 code?
Yes, but watch the temperature gauge. If fan 3 is the only fan running, the engine can overheat in stop-and-go traffic.
What does fan 3 control circuit mean?
It means the wiring, relay, or motor that turns on the third cooling fan has an electrical fault.
How much does it cost to fix a P0482?
A relay or fuse is $10–$60. A new fan motor typically costs $150–$400.
Related codes
P0480
P0480 Code: Cooling Fan 1 Control Circuit Malfunction
P0481P0481 Code: Cooling Fan 2 Control Circuit Malfunction
P0483P0483 Code: Cooling Fan Rationality Check Fault
Updated 2026-08. This page is informational and not a substitute for professional diagnosis.